Cryo-EM structure of the 2019-nCoV spike in the prefusion conformation.
Daniel Wrapp,Nianshuang Wang,Kizzmekia S. Corbett,Jory A. Goldsmith,Ching-Lin Hsieh,Olubukola M. Abiona,Barney S. Graham,Jason S. McLellan +7 more
TLDR
The authors show that this protein binds at least 10 times more tightly than the corresponding spike protein of severe acute respiratory syndrome (SARS)–CoV to their common host cell receptor, and test several published SARS-CoV RBD-specific monoclonal antibodies found that they do not have appreciable binding to 2019-nCoV S, suggesting that antibody cross-reactivity may be limited between the two RBDs.Abstract:
The outbreak of a novel coronavirus (2019-nCoV) represents a pandemic threat that has been declared a public health emergency of international concern. The CoV spike (S) glycoprotein is a key target for vaccines, therapeutic antibodies, and diagnostics. To facilitate medical countermeasure development, we determined a 3.5-angstrom-resolution cryo-electron microscopy structure of the 2019-nCoV S trimer in the prefusion conformation. The predominant state of the trimer has one of the three receptor-binding domains (RBDs) rotated up in a receptor-accessible conformation. We also provide biophysical and structural evidence that the 2019-nCoV S protein binds angiotensin-converting enzyme 2 (ACE2) with higher affinity than does severe acute respiratory syndrome (SARS)-CoV S. Additionally, we tested several published SARS-CoV RBD-specific monoclonal antibodies and found that they do not have appreciable binding to 2019-nCoV S, suggesting that antibody cross-reactivity may be limited between the two RBDs. The structure of 2019-nCoV S should enable the rapid development and evaluation of medical countermeasures to address the ongoing public health crisis.read more
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Morphometry of SARS-CoV and SARS-CoV-2 particles in ultrathin plastic sections of infected Vero cell cultures.
TL;DR: In this article, the authors studied the virus morphology and morphometry of SARS-CoV-2 in comparison to SARS CoV as it appears in Vero cell cultures by using conventional thin section electron microscopy and electron tomography.
Journal ArticleDOI
SARS-CoV-2: from its discovery to genome structure, transcription, and replication
TL;DR: SARS-CoV-2 is an extremely contagious respiratory virus causing adult atypical pneumonia COVID-19 with severe acute respiratory syndrome (SARS) as discussed by the authors, which has a single-stranded, positive-sense RNA (+RNA) genome of 29.9 kb and exhibits significant genetic shift from different isolates.
Posted ContentDOI
Neutralizing and protective human monoclonal antibodies recognizing the N-terminal domain of the SARS-CoV-2 spike protein.
Naveenchandra Suryadevara,Swathi Shrihari,Pavlo Gilchuk,Laura A. VanBlargan,Elad Binshtein,Seth J. Zost,Rachel S. Nargi,Rachel E. Sutton,Emma S. Winkler,Elaine C. Chen,Mallorie E. Fouch,Edgar Davidson,Benjamin J. Doranz,Robert H. Carnahan,Larissa B. Thackray,Michael S. Diamond,James E. Crowe +16 more
TL;DR: In this paper, a panel of human monoclonal antibodies binding to diverse epitopes on the N-terminal domain (NTD) of S protein from SARS-CoV-2 convalescent donors and found a minority of these possessed neutralizing activity.
Journal ArticleDOI
Humoral Immune Responses in COVID-19 Patients: A Window on the State of the Art.
TL;DR: There is urgent need to characterize the virus and the viral-mediated responses, in order to develop specific diagnostic and therapeutic tools to prevent viral transmission and efficiently cure COVID-19 patients.
Journal ArticleDOI
Flavonoids: A complementary approach to conventional therapy of COVID-19?
TL;DR: Quercetin, herbacetin, and isobavachalcone are discovered as the most promising flavonoids with anti-CoV potential, and proposed strategies for future work on medicinal plants against coronaviruses such as SARS- CoV-2.
References
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Clinical features of patients infected with 2019 novel coronavirus in Wuhan, China
Chaolin Huang,Yeming Wang,Xingwang Li,Lili Ren,Jianping Zhao,Yi Hu,Li Zhang,Guohui Fan,Jiuyang Xu,Xiaoying Gu,Zhenshun Cheng,Ting Yu,Jia'an Xia,Yuan Wei,Wenjuan Wu,Xuelei Xie,Wen Yin,Li Hui,Min Liu,Yan Xiao,Hong Gao,Li Guo,Jungang Xie,Guang-Fa Wang,Rongmeng Jiang,Zhancheng Gao,Qi Jin,Jianwei Wang,Bin Cao +28 more
TL;DR: The epidemiological, clinical, laboratory, and radiological characteristics and treatment and clinical outcomes of patients with laboratory-confirmed 2019-nCoV infection in Wuhan, China, were reported.
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UCSF Chimera--a visualization system for exploratory research and analysis.
Eric F. Pettersen,Thomas D. Goddard,Conrad C. Huang,Gregory S. Couch,Daniel M. Greenblatt,Elaine C. Meng,Thomas E. Ferrin +6 more
TL;DR: Two unusual extensions are presented: Multiscale, which adds the ability to visualize large‐scale molecular assemblies such as viral coats, and Collaboratory, which allows researchers to share a Chimera session interactively despite being at separate locales.
Journal ArticleDOI
Coot: model-building tools for molecular graphics.
Paul Emsley,Kevin Cowtan +1 more
TL;DR: CCP4mg is a project that aims to provide a general-purpose tool for structural biologists, providing tools for X-ray structure solution, structure comparison and analysis, and publication-quality graphics.
Journal ArticleDOI
A pneumonia outbreak associated with a new coronavirus of probable bat origin
Peng Zhou,Xing-Lou Yang,Xian Guang Wang,Ben Hu,Lei Zhang,Wei Zhang,Hao Rui Si,Yan Zhu,Bei Li,Chao Lin Huang,Hui-Dong Chen,Jing Chen,Yun Luo,Hua Guo,Ren Di Jiang,Meiqin Liu,Ying Chen,Xu Rui Shen,Xi Wang,Xiao Shuang Zheng,Kai Zhao,Quanjiao Chen,Fei Deng,Lin Lin Liu,Bing Yan,Fa Xian Zhan,Yan-Yi Wang,Gengfu Xiao,Zhengli Shi +28 more
TL;DR: Identification and characterization of a new coronavirus (2019-nCoV), which caused an epidemic of acute respiratory syndrome in humans in Wuhan, China, and it is shown that this virus belongs to the species of SARSr-CoV, indicates that the virus is related to a bat coronav virus.
Journal ArticleDOI
Epidemiological and clinical characteristics of 99 cases of 2019 novel coronavirus pneumonia in Wuhan, China: a descriptive study
Nanshan Chen,Min Zhou,Xuan Dong,Jie-Ming Qu,Fengyun Gong,Yang Han,Yang Qiu,Jingli Wang,Ying Liu,Yuan Wei,Jia'an Xia,Ting Yu,Xinxin Zhang,Li Zhang +13 more
TL;DR: Characteristics of patients who died were in line with the MuLBSTA score, an early warning model for predicting mortality in viral pneumonia, and further investigation is needed to explore the applicability of the Mu LBSTA scores in predicting the risk of mortality in 2019-nCoV infection.
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